Math, asked by darkbeauty, 1 month ago

The sum of first 10 terms of the following A.P : 5, 12 , 19…. is :

(a) 234 (b) 365 (c) 419 (d) 345
(please give proper answer)

Answers

Answered by dishuvvad1234

1

Answer:

365

Step-by-step explanation:

Sn=n\2(2a+(n-1)d)

S10=10\2(2(5)+(10-1)7)

=5(10+63)

=5(73)

=365

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